Skip to content
fr Sign in
8.3 High

CVE-2026-77180 When NGINX Ingress Controller is configured with Ingress annotations, an injection vulnerability exists in the…

Description

When NGINX Ingress Controller is configured with Ingress annotations, an injection vulnerability exists in the configuration generator of NGINX Ingress Controller. Multiple user-controllable fields are written into the generated NGINX configuration without sanitization. An authenticated attacker with permission to create or modify these annotations may craft values that inject arbitrary NGINX configuration directives. Impact: An authenticated attacker granted write access to NGINX Ingress Controller Ingress annotations through the Kubernetes API may be able to inject arbitrary NGINX configuration directives, create or delete files, or disable services. There is no data plane exposure; this is a control plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products and versions

Product Affected versions Fixed in
NGINX Ingress Controller 2026 2026-lts-r1 → < 2026-lts-r5 2026-lts-r5
NGINX Ingress Controller 5.0 5.0.0 → < 5.6.0 5.6.0

References

Timeline

  1. Published
  2. Last modified

Other CVEs of NGINX Ingress Controller

The 8 CVEs of NGINX Ingress Controller →
CVE-2026-104939 Description NGINX Ingress Controller has a vulnerability when implementing an externalAuth policy for ingress 7.5 High CVE-2026-94197 An authentication and authorization bypass vulnerability exists in F5 NGINX Kubernetes Ingress Controller (NIC) when… 7.5 High CVE-2026-52865 When NGINX Ingress Controller processes Ingress or TransportServer resources, an authenticated, remote attacker with… 6.5 Medium CVE-2026-55723 When NGINX Ingress Controller is configured with Custom Resource Definitions (CRDs) or Ingress annotations, an injection… 8.3 High
Track this CVE